According to Article 22 2 "Promotion of Information and Communications Network Utilization and Information Protection Act, etc." You get to accept a user on the "App permissions" for purposes such as:Only the necessary items in the essential services and access.Also selective approach is available even if you do not allow services and contents are as follows:

- essential access;■ Storage: access to the function if you want to upload the files when writing posts, / push button at the bottom of the image and representation■ registered address: personal identification for sending the push notifications when the first execution information (device ID) is required to confirm

[Selective access;■ Not applicable■ If you use an Android version below 6.0 can not establish a selective access separately, please use after confirming whether to provide handset manufacturers to upgrade the operating system functionality, updated at least version 6.0.However, even after the operating system upgrade, delete the installation in order to set access privileges again, because change is agreed to access apps from your existing app, you'll need to reinstall.